(19)

(11)

EP 3 942 892 A1

(12)

(43) Date of publication: 26.01.2022 Bulletin 2022/04 (21) Application number: 20714076.5 (22) Date of filing: 28.02.2020

(51) International Patent Classification (IPC):  H04W 74/08(2009.01) H04W 52/50(2009.01) (52) Cooperative Patent Classification (CPC): H04W 52/50; H04W 52/242; H04W 74/0833; H04L 5/0044; H04L 25/0226; H04W 52/34; H04W 52/265; H04L 5/0051 (86) International application number: PCT/US2020/020457 (87) International publication number: WO 2020/190484 (24.09.2020 Gazette 2020/39)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 18.03.2019 US 201962820075 P 27.02.2020 US 202016803583 (71) Applicant: QUALCOMM Incorporated San Diego, CA 92121-1714 (US)	(72) Inventors: LEI, Jing San Diego, California 92121 (US) CHEN, Wanshi San Diego, California 92121 (US) (74) Representative: Dunlop, Hugh Christopher et al Maucher Jenkins 26 Caxton Street London SW1H 0RJ London SW1H 0RJ (GB)